Why Kaysons ?

Video lectures

Access over 500+ hours of video lectures 24*7, covering complete syllabus for JEE preparation.

Online Support

Practice over 30000+ questions starting from basic level to JEE advance level.

Live Doubt Clearing Session

Ask your doubts live everyday Join our live doubt clearing session conducted by our experts.

National Mock Tests

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

Organized Learning

Proper planning to complete syllabus is the key to get a decent rank in JEE.

Test Series/Daily assignments

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

SPEAK TO COUNSELLOR ? CLICK HERE

Solid State

  • 1
  • 2
  • 3
  • 4

Q.

Column-I                      Column- II

(A)      Hcp                   (p) 0.38

(B)      Ccp                    (q) 0.48

(C)      Bcc                    (r) 0.22

(D)      Sc                      (s) 0.66

(E)       Dc(diamond cubic) (t)

CODES :

A         B         C             D

Q.

The number of atoms in 100 g of an fcc crystal with density  and cell edge equal to 200 pm is equal to

Q.

The following diagram shows the arrangement of lattice points with  and . Choose the correct options

Q.

In a closed packed structure of mixed oxides, the lattice is composed of mixed oxides ions. One-eighth of tetrahedral voids are occupied by divalent cations () while one-half of octahedral voids are occupied by trivalent cations(). The formula of mixed oxide is

Q. The number of octahedral sites per sphere in fcc structure is?

No. of octahedral voids = No. of ions in the packing
=> Octahedral voids per sphere = 1

Q. An example of a substance possessing giant covalent structure is?

Silica (SiO2) has giant covalent structure.

Q. What is the meaning of anisotropy?

The property of a material which allows it to change or assume different properties in different directions as opposed to isotropy.

Q. A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely disappears. This behavior is the characteristic of substances forming.?

It is a characteristic of liquid crystal.
liquid crystals form turbid looking liquid on heating and on further heating these crystals breakdown and pure liquid is formed hence the turbidity disappears.